66031189497262 has 96 divisors (see below), whose sum is σ = 115155277322400. Its totient is φ = 28156555499520.

The previous prime is 66031189497257. The next prime is 66031189497269. The reversal of 66031189497262 is 26279498113066.

It is a junction number, because it is equal to n+sod(n) for n = 66031189497194 and 66031189497203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66031189497269) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8159045688 + ... + 8159053780.

It is an arithmetic number, because the mean of its divisors is an integer number (1199534138775).

Almost surely, 2^{66031189497262} is an apocalyptic number.

66031189497262 is a deficient number, since it is larger than the sum of its proper divisors (49124087825138).

66031189497262 is a wasteful number, since it uses less digits than its factorization.

66031189497262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12166 (or 12149 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 64.

The spelling of 66031189497262 in words is "sixty-six trillion, thirty-one billion, one hundred eighty-nine million, four hundred ninety-seven thousand, two hundred sixty-two".